WCA November 2018

Technology news

Getting ‘smart’ with Activ-Check

IN response to the increased demand for “smart” technology, Davis-Standard has launched its DS Activ-Check system for continuous extruder monitoring. This technology is an available option with the company’s Integrator, Epic III ® and DS-eVue control systems. Activ-Check enables processors to take advantage of real-time predictive maintenance by providing early notifications of potential extruder failures. Machine operators are alerted to issues before they happen, reducing unplanned downtime while also collecting valuable data. Users receive notifications via e-mail or text, and continuous monitoring of production machine status is available on smart devices and remote PCs. Key parameters monitored include extruder reducer, lubrication system, motor characteristics, the drive power unit, and barrel heating and cooling. The system is easy to operate due to overview screens that provide a quick reference of monitor points and trend windows, providing a graphic indication of measurements. Users can touch a location to view details, or use on-screen set-up for email or text notifications. Vibration sensors on the extruder reducer provide data regarding the condition of the gears, bearings and lubrication system. The extruder motor

❍ A screenshot of Davis-Standard’s Activ-Check system, allowing for quick reference of monitor points and trend windows

is combination temperature sensors and vibration sensors. The reducer lubrication system (if provided) includes pressure, flow and temperature sensors to indicate system performance. Operators are also able to monitor key health indicator parameters in the drive power unit, providing an early indicator of potential power unit issues. “The Activ-Check system provides much-needed data for processors to improve performance, including being able to plan production around scheduled maintenance activities,” said John Clemens, director of extrusion controls. supplied with

“Having the capability to monitor extrusion line variables such as mechanical and electrical system conditions is essential in order to bring products to market faster and minimise unplanned downtime. “This technology will also allow customers to address a pending condition that could become a more serious issue in the future. “All of this is valuable and much-needed knowledge to strengthen existing extrusion and converting processes.” Davis-Standard LLC – USA Website : www.davis-standard.com

Rosendahl Nextrom’s RX 5 crosshead is specially developed for fibre optic cable applications. During the extrusion process, a high degree of reproducibility and constant product replication are core values for the company. The RX 5 crosshead with linear guiding is optimised for secondary coating lines. This works for both dry and jelly-filled applications. It is composed of a fine-tuning centring unit and a jelly unit for bubble-free jelly filling. The specially customised and adjusted needle supports the required precision during the extrusion process. The loose tube trend shows that small-sized products are increasingly in demand. Smaller products require a thinner wall thickness. With a wall thickness of 0.15 to 0.3mm, the RX 5 crosshead meets the targets with precision. Even at geared line speeds of up to 1,000m/min, the product keeps its shape and required properties. Rosendahl Nextrom has developed additional tools, like a Rosendahl improves the RX 5 crosshead

❍ The RX 5 crosshead from Rosendahl Nextrom

trolley with a heating zone and special crosshead fixing. This supports product centricity and keeps the crosshead fixed at the same position. The crosshead unit is easy to handle and has proven its reliability. Rosendahl Nextrom – Austria Website : www.rosendahlnextrom.com

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Wire & Cable ASIA – November/December 2018

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